Last month Wendy Seltzer, a visiting assistant professor at Brooklyn Law School, was slapped with a DMCA takedown notice after she posted a snippet of the NFL's standard copyright warning, taken from this year's Super Bowl, on YouTube (The Chronicle, February 16).

Perhaps she wouldn't have had a problem if she had posted it at her own website? How is it a violation of copyright to show a copyright warning? Can the NFL copyright its copyright warning?